{"id":"metallb-bare-metal-networking-model","text":"Bare metal clusters use MetalLB for load balancing with two complementary modes: Layer 2 (gratuitous ARP failover within ~10s) and BGP (constrained to single ASN/router-ID), providing external service access without cloud provider load balancers.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["metallb-l2-failover-gratuitous-arp","metallb-bgp-single-asn-requirement"],"outlist":[],"label":"MetalLB L2 and BGP modes form the bare metal external networking model"}],"dependents":["bare-metal-requires-specialized-infra-at-every-layer"],"metadata":{},"explanation":{"steps":[{"node":"metallb-bare-metal-networking-model","truth_value":"IN","reason":"SL justification valid","antecedents":["metallb-l2-failover-gratuitous-arp","metallb-bgp-single-asn-requirement"],"label":"MetalLB L2 and BGP modes form the bare metal external networking model"},{"node":"metallb-l2-failover-gratuitous-arp","truth_value":"IN","reason":"premise"},{"node":"metallb-bgp-single-asn-requirement","truth_value":"IN","reason":"premise"}]}}